{block #content}
<div class="celebriomailapp_mailview">
    <div><strong>{!_'From:'}</strong> {$mailFrom}</div>
    <div><strong>{!_'Subject:'}</strong> {$mailSubject}</div>
    <div><strong>{!_'To:'}</strong> {$mailTo}</div>
    <iframe src="{link Default:mailbody,'number'=>$mailNumber,'folder'=>$mailFolder}" />
</div>
{/block}